The answer is: yes to drug studies.

回答是：是为了药物研究。

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Some researchers do not think drug studies should use placebos.

有些研究人员认为，研制新药不应使用安慰剂。

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He earned most of the $7000 it cost to make Mariachi , El (1992) by subjecting himself to experimental drug studies.

他参加了药品试验赚取了用来拍摄《杀手悲歌》的7000美元中的大部分。

youdao

Studies have found that nicotine can be as difficult to resist as alcohol or the drug cocaine.

VOA: special.2010.03.09

Chad Reissig at Johns Hopkins University in Baltimore,Maryland, is a medical researcher who studies drug dependence.

VOA: special.2009.07.22

At the same hearing, he says in one of the best studies used molecular fingerprinting to follow an outbreak of drug-resistant bacteria: "You actually can trace the specific bacteria around and they find that the resistant strains in humans match the resistant strains in the animals."

VOA: standard.2010.07.21

But randomized controlled clinical trials also are used to prove benefit in big drug studies.

FORBES

Ballantyne has conducted cholesterol drug studies funded by a joint venture of Merck and Schering-Plough (nyse: SGP - news - people ).

FORBES: Bristol Prepares Shot In Statin War

Khan says drug studies in suicidal patients are possible and ethical.

FORBES: The Sick Patients Glaxo, Pfizer, and Lilly Refuse To Help